Bento grid using CSS-grid and BEM structure!

What are you most proud of, and what would you do differently next time?

I'm very proud of my HTML and BEM structure, I had to do it twice (read my progress) and I'd like to try responsive design mobile first to maybe avoid that kind of problems.

What challenges did you encounter, and how did you overcome them?

Everything was nice with the desktop view since I did it first, but in the moment I started the responsive, I noticed my cards were distributed differently so I took a deep breath, a long break and then fixed it.

What specific areas of your project would you like help with?

I'd like recommendations for the BEM structure. Is it good? what would you do differently? And If you have other recommendations for CSS, please let me now!